Declension table of ?hayamāna

Masculine	Singular	Dual	Plural
Nominative	hayamānaḥ	hayamānau	hayamānāḥ
Vocative	hayamāna	hayamānau	hayamānāḥ
Accusative	hayamānam	hayamānau	hayamānān
Instrumental	hayamānena	hayamānābhyām	hayamānaiḥ hayamānebhiḥ
Dative	hayamānāya	hayamānābhyām	hayamānebhyaḥ
Ablative	hayamānāt	hayamānābhyām	hayamānebhyaḥ
Genitive	hayamānasya	hayamānayoḥ	hayamānānām
Locative	hayamāne	hayamānayoḥ	hayamāneṣu

Compound hayamāna -

Adverb -hayamānam -hayamānāt